Identify, please?

[sueandherzoo]

While I had this rock in my sink (killing aiptasia) I noticed these two things on my new live rock. When the rock is in the tank these things just look like black "burn" marks on the rock, but when I saw them out of the water they were shiny, soft and elevated. Any ideas what these are?

 

[texasmetal]

First guess is sponge.

 

[scopus tang]

Don't think they're a sponge my guess would be more aiptasia

 

[saltandpepper]

I've got a couple on some of my live rock too, but I saddly do not know what it is at the moment.
It is possibly some type of bacteria growth or algae, but I would lean towards the bacteria more IMO. It looks slimey out of the water but your right, when it is submerged it is very dark and black looking.

 

[sueandherzoo]

Originally Posted by Scopus Tang
http:///forum/post/2904299
Don't think they're a sponge my guess would be more aiptasia
Are you just saying that to get me back in to my "KILL" mode?

 

[spanko]

To serve and protect!!!!!!!!!

Seriously hard to tell without them in their habitat.

 

[scopus tang]

Originally Posted by SueAndHerZoo
http:///forum/post/2904585
Are you just saying that to get me back in to my "KILL" mode?

mmmmmmhaha! But in all seriousness, no - as Henry said - tough to say without them in their environment, but those do look similar to aiptasia I've seen out of water - keep a close eye on the little buggers and keep your fingers crossed that they are something else.

 

[cranberry]

I'm going with tunicate because of the "pattern" you can see in the rounder one.

 

[sueandherzoo]

I'll keep you posted so we can determine who the winner is. When the rock is in the tank it looks flush with the rock - like a smudge of black paint or something..... not shiny - dull and flat.
Stay tuned . . .

 

[spanko]

Does stay tuned mean you will post a picture of it in the tank? (I hope, I hope, I hope)